Heat and draft regulator for furnaces, stoves, water heaters, and the like



1,856,478 E S. EATEIRS, AND THE LIKE May 3, 1932.

CHANGE OF NAM M. GREENBERG. NOW BY JUDICIAL M. GREEN HEAT AND DRAFT,REGULATOR FOR FURNACES, STOVES, WATER n Filed April 15, 1931 11v VENTURMax @IPEE/VB ERG v 4 TTOR."VEY

Patented May 3, 1932 PATENT OFFICE MAX GREENBERG, NOW IBY JUDICIAL CHLNGE OF NAME SAY M. GREEN, CLEVELAND, OHIO, ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, T0 HEAT AND DRAFT CONTROL, INCL, OF CLEVELAND, OHIO, ACORPORATION OF OHIO HEAT AND DRAFT REGULATOR FORFURNACES, STOVES, WATERHEATERS, AND

THE

Application filed April 15,

The present invention is an improved form of the heat saving attachmentfor furnaces,

,etc., described in my pending application, Se-

rial No. 447,885, filed April 28, 1930.

The purpose of the present invention is to increase the cfiiciency ofthe device, holding, the heat in the heating unit and preventing itsescape through the chimney.

A further result of the invention is that it adds breathing to thefurnace thereby insuringproper combustion of the fuel; it draws airthrough holes in the smoke pipe, thereby reducing stack draft; it alsostops down draft, the latter wasting itself as it strikes the outercone.

Furthermore it a safety device against n'nmoxide or other gases. fumes,or obnoxious odors that may exist in basement, boiler room or kitchenthese gases, fumes, etc. will be carried away by being drawn through theopenings provided in the pipe; in other words. it acts as a ventilator.

\Vith these and other objects in view, my invention consists in theconstruction, arrangement and combination of the several parts of mydevice, whereby the objects contemplated are attained, as hereinaftermore fully set forth, pointed out in my claims and illustrated in theaccompanying drawings, in which:

Fig. l is a longitudinal section of a smoke pipe with the deviceinstalled.

F ig. 2 is a longitudinal elevation partly in section.

Fig. 3 is an enlarged section of the device.

F ig. 4 is a detail in section.

Referring to Figs. 1, 2 and 3 of the drawings:

The smoke pipe indicated at connects to the furnace 11 and containedpartly within this pipe 10 is a heat retaining: or battle devicecomprising the cylinder 12 with grooves 13 and 14 and a plurality ofapertures 15. The

cylinder 12 extends within the pipe 10 to the first groove and thecrimped end 16 of the cylinder 12 is held within the pipe 17. Within thecylinder 12 and forming a fixed part is the ballie shell 18 which hasrounded walls with a small opening as shown at 19, and the shell 18prevents slipping within the cyl- LIKE 1931. Serial No. 530,233.

inder 12 after the shell is mounted Within the cylinder.

Ahutting on the shell 18 and headed within the groove 13 is afrustro-conical deflector shell 2, inclined or directed with its smallend toward the chimney, and this is surroundeilbv the ring of holesabove referred to.

Mounted within the frustro-conical deflector shell 26 is the screw rod21 which projects through the center of the inner cross bar or brace 22which has a. plurality of legs attached to the dellector shell 26, at anangle. Mounted upon the screw rod 21 is the. adjustable dcflector withsemi-round end 20 the adjustments being made through the aperture 27when the shutter 28 is slipped from its position. 'lhe shutter 28 may beattached to the pipe by a chain The holes 15 admit air into the smokepipe. thereby ventilating a collar or the like, and they also check thedraft in the pipe, thereby assisting the operation of the baflle devicereferred to in my said pending application. Also down draft or blastswill be obstructed by the deflector 20 and shell 26 and blow out throughthe holes 15.

By the means described a delayed or slow and even draft is provided,attended with great economy of operation, especially with a gas furnace.

I claim:

1. The combination with a smoke ipe havmg holes in the Wall thereof, ofa liafile deyice in the pipe, in advance of the holes, and atapereddeflector shell in the pipe and adjacent the batlle and oppositesaid holes, the

small end of said shell being directed toward the outlet from the pipe.

2. The combination with a smoke pipe havin holes in the wall thereof, ofa baflle device in the pipe, in advance of the holes, and a tapereddeflector shell in pipe and adjacent the baflle and opposite said holes,the small end of said shell being directed toward the outlet from thepipe, the small end of the shell extending beyond the plane of theholes.

In testimony whereof, I do alfix my signature.

MAX GREENBERG.

